Hello, according to this quote, I'm making this guide.
Okay, let's get started, make a new Canvas on your Photoshop. Size doesn't really matters.
After making the new Canvas, everything should look like this:
Then, go to your tools and Select this tool. (Sorry but my PS is greek.)
http://i259.photobucket.com/albums/hh288/ExtePetrolis/2-1.jpg[/img]
Use this tool once on your Canvas, when you're done, everything should look like this:
http://i259.photobucket.com/albums/hh288/ExtePetrolis/3.jpg[/img]
After this, make your background as you wish. (NOTE: Background shouldn't be same/bigger than the canvas' size).
Here's an example:
http://i259.photobucket.com/albums/hh288/ExtePetrolis/4.jpg[/img]
Then, put your render on the picture and make it so the edges are going out of the background, just like this:
http://i259.photobucket.com/albums/hh288/ExtePetrolis/5.jpg[/img]
After doing all these steps and finishing your signature, go on File -> Save as.. and Select .PNG Format, like it's shown on the screen.
http://i259.photobucket.com/albums/hh288/ExtePetrolis/6.jpg[/img]
http://i259.photobucket.com/albums/hh288/ExtePetrolis/7.jpg[/img]
This is it, you're done!
Guide made by Exte, copying this guide without mentioning my name IS NOT ALLOWED!